baber/WOPTO huggingface dataset:
Patent GB-1215934-A (GB)
Title: Improvements in or relating to navigation aiding radio receivers
Inventor: BROW THOMAS THEODORE
IPC: G01S1/02
Filed: 1967-06-15
Abstract: 1,215,934. Radio navigation. MARCONI CO. Ltd. 20 March, 1968 [15 June, 1967], No. 27584/67. Heading H4D. [Also in Division G1] Relates to radio navigation receivers in which the amplitudes of two modulation frequencies (e.g. 90 c/s., 150 c/s.) on a common carrier frequency are compared to afford an indication of deviation from a course line. According to the invention the modulation frequencies are alternately heterodyned to the same resultant frequency and the resultant frequency is fed alternately and synchronously to rectifying means to give two output signals respectively proportional to the amplitudes of the two modulation frequencies. In one embodiment a local master oscillator 3 of frequency 180 c/s. is phaselocked to the 90 c/s. tone and logic circuit dividers 2, 4, 5 produce 90 e/s., 60 c/s., 7.5 c/s. outputs respectively, the 7.5 c/s. outputs being fed to AND gates 6, 7, 9, 10 to effect the requisite change-over switching; D1 and F are the usual course-deviation indicator and flag alarm respectively. Narrow-band filter 8 which follows balanced mixer M is preferably a "three-shift register" digital filter fed with a " clocking " 90 c/s. signal from divider 2 to afford a 2 c/s. bandwidth centred accurately on 30 c/s.: and any received 90 c/s. tone shift will be followed by the filter.
Patent GB-533114-A (GB)
Title: Improvements in closure devices for milk and like bottles, jars and other containers
IPC: B65D39/02
Filed: 1939-10-10
Abstract: 533,114. Stoppers for bottles and like. PROVAN, H. D. Oct. 10, 1939, Nos. 27587 and 28402. [Class 125 (iii)] A disc closure for a milk bottle, jar or other container has an integral radial tongue which, when the disc is in the mouth of the container, is turned up to extend perpendicularly to the disc. A blank of strawboard or the like is shaped as shown in Fig. 2, and the central part is cut along the lines 14, 15, 16, 17, 19, 20 forming crescent-shaped portions on each side of the central tongue. The central part 121 is lifted as shown in Figs..3, 4 and the part 13 is moved to slide over the part 11 to form the disc closure shown in Fig. 4 with the perpendicular finger hold 121. In a modification, the part 13 has a radial extension 131, Figs. 6, 7, by which the part can be pulled up and turned over without removing the closure from the bottle mouth. This exposes the opening 22 for pouring purposes, or for the insertion of a straw.
Patent GB-275968-A (GB)
Abstract: 275,968. National Cash Register Co., (Assignees of Shipley, B. M.). Aug. 10, 1926, [Convention date]. Cash registers with operating means; printing totals.-Positive means are provided for preventing an overthrow of the release shaft during repeat operations and a possible release of the keys. A shoulder on an arm 106 tends to move into engagement with a shoulder 105 on an arm 66 secured to the release shaft 42 under the influence of a spring 107, but is only free to do so when a bell-crank lever 109 is allowed to turn counterclockwise. The normal release is effected by a pin 85 on an arm 84 engaging a slide 86 on a link 65 to rock the arm 66, but during repeat operations the slide is moved to the left by an arm 96 when a lever 93, moved by a detent actuated by the control keys, engages a projection 95 on the arm. A pin 108 on the lever 109 is thus freed from the slide 86 and on depression of the link 65 a stud 110 moves away from the lever and the overthrow-preventing means 106 moves into position. The pin 85 is also released from the slide and, engaging a shoulder 90, does not move the link 65 sufficiently to release the keys. Disabling the overthrow-preventing means for total-taking. The link 65 is moved to the lift by a link 137 when a total is to be taken and a pin 150 moves below an extension 151 of the lever 109 to prevent the arm 106 engaging the shoulder 105. During the first movement of the arm 84, the pin 85 passes down a slot 139 and thus does not communicate its movement to the link 65, but during the second movement it engages a shoulder 126 and thus moves the link sufficiently to release the transaction key. Specification 255,076 is referred to.
Patent GB-811993-A (GB)
Title: A new or improved connecting pin for structural members
Inventor: STOREY THOMAS
IPC: F16B19/00
Filed: 1954-09-24
Abstract: 811,993. Bolt-like pins; dowels. STOREY (ENGINEERS) Ltd., T. Aug. 26, 1955 [Sept. 24, 1954], No. 27602/54. Classes 89(1) and 89(2) A dowel or bolt-like pin, e.g. for securing together parts B of a bridge, comprises a longitudinally-slit-sleeve A and, a tapered plug C engaging in a tapered plug a<SP>4</SP> in the sleeve and longer than the bore. Sleeve A is thus expanded to fit tightly the holes in parts B. The plug may be retained in position by a cotter D entering hole c<SP>3</SP>.
Patent GB-1200878-A (GB)
Title: Composite sleeve for ladle stopper rods
Inventor: WEED SETH E
IPC: B22D41/18
Filed: 1969-05-30
Abstract: 1,200,878. Moulding composite refractory sleeves. VESUVIUS CRUCIBLE CO. 30 May, 1969, No. 27649/69. Heading B5A. [Also in Divisions F3-F4] A composite refractory sleeve for a ladle stopper rod (see Divisions F3-F4) is prepared in a cylindrical mould 9 seated on a base 10 carrying a ring 11 by first inserting a mass of refractory in the mould and then inserting from above and removing upwardly a mandrel 13. Excess material is discharged through the bottom of the mould leaving a sleeve 4. Ring 11 is then replaced by another ring 15, Fig. 5, with a projection 16 and the process repeated with a mass of different refractory and a mandrel 18 having a recess 21 in its head plate. Withdrawal of this mandrel and the ring 15 leaves the sleeve in the mould with a tapered annular projection 5 at the top end and a corresponding recess 6 at the other end. The composite sleeve is then removed and fired. The inner sleeve layer may comprise refractory clay and metal oxides and the outer layer these constituents plus graphite.
Patent GB-1325384-A (GB)
Title: Electric starter motors for starting motor vehicle engines
IPC: F02N/
Filed: 1971-06-14
Abstract: 1325384 Casings for electric motors JOSEPH LUCAS (AUSTRALIA) PTY Ltd 14 June 1971 [17 June 1970 11 Dec 1970] 27719/71 Heading H2A An electric starter motor easing comprises a hollow body portion 13 and detachable end closures 16, 17 which are held together by steel straps 23 extending along the outside of the body portion. One end (24) of each strap has a hook or projection which engages a shoulder on one closure 17. The other end of each strap is secured to the second closure 16 either by a projection and wedge-shaped shoulder (Fig. 7, not shown) or by a bolt (Fig. 1) or threaded part of the strap (Figs. 8-10, not shown). The second closure 16 has a mounting flange 21.
Patent GB-249437-A (GB)
Title: Improvements in or relating to domestic hand irons
IPC: D06F75/02
Filed: 1925-11-04
Abstract: 249,437. Finburgh, A. Nov. 4, 1925. Heating hand - irons before use; hand-irons with standing means attached; detachable handles and construction of handles of handirons.-In that type of iron provided with a tray d beneath the handle b so that on inversion of the iron the tray can be filled with spirit &c. ignited to heat the iron while out of use, a metal bar f is pivoted in a recess in the handle and, when the iron is inverted, the bar is turned transversely to the iron so as to render the support more stable. A hole e may be formed in the iron to facilitate filling the tray and for this purpose also the handle may be pivoted to the iron or made detachable. A fuel-container i is housed in the handle.
Patent GB-858689-A (GB)
Title: Improvements in polyurethane foam
IPC: C08J9/00
Filed: 1958-08-29
Abstract: A polyurethane foam is prepared by reacting a di-isocyanate with a polyester and/or a polyether, adding water and starch, and shaping, toluene di-isocyanate and diethylene glycol adipate are preferred, though others are given.  Also present may be tri-isocyanates, an agent capable of forming urea linkages, materials polyfunctional towards isocyanates, and catalysts, e.g. soluble heavy metal salts and tertiary amines.  The polyether may be internally modified by a polyester or a polyamide.ALSO:100 parts of a polyurethane foam contains 1-100 parts of starch and is prepared by reacting a diisocyanate with a polyester and/or polyether, adding water and starch, and shaping.  Toluene di isocyanate and di ethylene glycol adipate are preferred, though others are given.  Also present may be tri isocyanates, an agent capable of forming urea linkages, materials polyfunctional towards isocyanates, and catalysts, e.g. soluble heavy metal salts and tertiary amines.  The polyester may be internally modified by a polyester or a polyamide.
Patent GB-171276-A (GB)
Title: Improvements in and relating to machines for wrappering cylindrical articles
IPC: B65B11/56
Filed: 1920-09-30
Abstract: 171,276. Brown, E. W. Sept. 30, 1920. Coating-machines.-In a machine for wrapping cylindrical articles, an article is fed between an endless belt 2 and a track 31, and in its passage to the right depresses a lever 6 pivoted at 7. The other end 8 of the lever engages a bar 10 on a lever 11 carrying dippers 13 in a tank 14 of agglutinant and raises the dippers into engagement with the article with a rubbing contact. Jockey rollers 3 maintains the belt 2 in engagement. After a wrapper has been applied and the ends partly folded, agglutinant is applied to the folds by a similar device.
Patent GB-945845-A (GB)
Title: Improvements relating to equalizing devices for textile thread withdrawal
IPC: D01H1/10
Filed: 1960-08-11
Abstract: 945,845. Regulating yarn withdrawal. BARMER MASCHINENFABRIK A. G. Aug. 11, 1960 [Nov. 17, 1959], No. 27865/60. Headings DID and D1J. A device for equalizing the speeds at which yarns are withdrawn from a number of freely rotatable packages comprises for each package at least one friction roller which bears upon the surface of the package with an adjustable contact pressure, all the friction rollers being interconnected for rotation at the same peripheral speed. In Fig. 1 friction rollers 14,15 bear against the surfaces of packages 7, 8 of a double twist doubling device and are constrained to have the same peripheral speed by an interconnecting belt 18 which passes about them and also about guides which may, as shown, be idler rollers 16,17 or alternatively plain guide pins. The friction rollers 14,15 are mounted on the arms 12,13 of a U-shaped bracket which is rotatably mounted in and at right angles to a supporting rod 10 journalled in a support 1 and biased by a spring 11 to give the required contact pressing between the rollers and the packages. The rollers 14,15 may be grooved to receive belt 18 so that only the rollers contact the packages or it may be arranged that the rollers contact the packages through the belt only. In a further form each friction roller is mounted on its own bracket so that the biasing force on each bracket may be individually adjusted. In Fig. 6, in which yarn is drawn from three packages, rollers 33, 34 for packages 30, 31 are mounted on a common bracket 26 while a roller 32 for the package 29 is mounted on its own bracket 25, a flexible shaft 35 serving as the interconnecting means. Alternatively the carrier 25 may be similar to carrier 26 and carry two rollers in which case the package 30 would be engaged by two rollers coupled only through the surface of the package. A further pair of interconnected, biased rollers may be arranged between packages 29 and 31 so that each package is engaged by two rollers. In Fig. 8 a shaft 37 of a friction roller 36 is extended into a gear-box 38,pivotable about the arm 10 so that the friction rollers may be driven via the gear-box. Such a device is preferably used only when withdrawn of thread begins, automatic means for then switching out the drive being provided.
Patent GB-1150720-A (GB)
Title: Preparation of Beta-Mercaptopropionic Acid
Filed: 1966-06-22
Abstract: 1,150,720. Beta - mercaptopropionic acid. STAMICARBON N.V. 22 June, 1966 [3 July, 1965], No. 27998/66. Heading C2C. Beta-mercaptopropionic acid is prepared by reacting acrylic acid with liquid H 2 S in the presence of a free organic base. The amount of base used is preferably 1À01-1À1 times the amount of base equivalent of the acrylic acid and suitable bases are amines, e.g. di- or triethylamine, diamines such as tetramethylenediamine; piperidine and quaternary ammonium bases. 1À5-10 moles of H 2 S is preferably used for each mole of acrylic acid. Reaction conditions are preferably from -10 to 50 C. at 5-25 atms. pressure. After the reaction has stopped, the excess H 2 S may be removed by evaporation and the product, after acidification, separated e.g. by distillation or extraction. Dithiodipropionic acid is formed as a by-product and can be hydrogenated in the presence of a catalyst such as rhenium sulphide or selenide to yield beta-mercaptopropionic acid.
Patent GB-760704-A (GB)
Title: Improvements in potato harvesting machines
IPC: A01D33/02
Filed: 1953-10-13
Abstract: 760,704. Potato-harvesters. GORDON, H., and TURNER, J. S. G. Sept. 24, 1954 [Oct. 13, 1953], No. 28129/53. Class 6(3). In a potato-harvester of the type wherein the excavated material is carried upwardly on the surface of an elevator a, spring-loaded rods c are mounted adjacent to the upper sprockets so as to press haulm or weeds against the surface of the elevator thereby preventing the discharge of such material on to the elevator b receiving the crop ; the haulm is carried around towards the return run of the elevator and is discharged at d, the discharge being facilitated by a small roller e, rotating anticlockwise, between the elevators a, b. According to the Provisional Specification, weighted rubber bands are mounted in the same way as the rods c.
Patent GB-377846-A (GB)
Title: Improvements in and relating to fruit juice extractors
IPC: A47J19/02
Filed: 1931-10-09
Abstract: 377,846. Extracting juice from lemons &c. FRAMM, H., Hamburg, Wisconsin, U.S.A. Oct. 9, 1931, No. 28134. [Class 28 (ii).] In -apparatus for extracting juice from lemons &c., the ribbed cone 31 is rotated whilst the strainer 33 is oscillated to clear the pulp from the perforations. The cone 31 is recessed to fit the squared end 30 of a shaft 25 driven by a motor 13 through an interposed spur wheel 23 which is pinned to a shaft 22 having an inclined end 37 on which is journalled the end of a rod 38. The other end of the rod 38 engages a slotted bracket 42 attached to the strainer 33 which has a central sleeve 32 journalled on the bearing for the shaft 25. The machine may be driven by a hand crank fitted on the squared end of the shaft 22. The juice-collecting trough 27 is formed as a cover for the casing 10 which encloses the driving mechanism. In a modification, the motor shaft is coupled directly to the cone-carrying shaft and is extended downwardly to drive through worm gearing, an oscillating telescopic link which is pivoted to a rod slidably mounted in a sleeve pivoted to a bracket extending from the sleeve carrying the strainer, the oscillation of the strainer being thereby effected.
Patent GB-1395492-A (GB)
Title: Electrical contact breaker apparatus for spark ignition internal combustion engines
IPC: F02P7/063
Filed: 1971-06-16
Abstract: 1395492 Mechanical interrupters; rotary distributers B RICHARDS 13 June 1972 [16 June 1971 27 Nov 1971] 28157/71 and 55167/71 Heading H1N Electrical contact breaker apparatus for a spark ignition internal combustion engine inchides a replaceable cartridge 40 incorporating a set of electrical contact points 16, 18, means whereby cartridge 40 can be mounted in position in an electrical distributer, and an electrical contact 52 for establishing the required electrical connections to contact points 16, 18. As shown, cartridge 40 is slid into housing 60 having an opening 74 through which cam 10 can engage cam follower 14 to open and close contact points 16, 18, and contact 52 engages a contact 76, Fig. 3 (not shown), projecting through the wall of housing 60. Member 59 enables cartridge 40 to be withdrawn through hole 80 in distributer cap 28, closed by cover 82. Housing 60 has a metallic mounting plate 62 and walls and top of plastics or may be made from bent-up metal sheet. Different forms of housing and cartridge are described.
Patent GB-424075-A (GB)
Title: Improvements in or relating to controlling systems for electrically operated lifts
IPC: H02P7/34
Filed: 1933-10-12
Abstract: 424,075. Control of D.C. motors. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and CHUBB, A. A., c /o General Electric Co., Stoke, Coventry. Oct. 12, 1933, No. 28163. [Class 38 (iii)] In a control system for an electrically operated lift, comprising a Ward-Leonard motor generator set in which the field current of the generator is controlled by a triode VA, the generator H is so connected to the grid circuit of the triode that a change in generator terminal voltage, after a predetermined value has been reached, causes a change in the anode current of the triode tending to restore the generator voltage to the predetermined value. In the arrangement shown, the triode VA is supplied with anode potential and grid bias from a transformer MT, and control potentials are applied to the grid from apparatus of the kind described in Specification 423,805. The anode circuit is connected through reversing contacts r1, r2 to the field coil FC of a generator G, which is rotated at constant speed by a motor M and supplies current to the field coil FD of the generator H. A second triode VB also receives anode and grid bias potentials from the transformer MT, the grid bias being of opposite phase to that applied to the triode VA. The grid circuit of the triode VB also includes reversing contacts r3, r4, and a section of a potentiometer D connected across the terminals of the generator H. The anode circuit of the triode VB includes a contact p1 of a voltage relay P, a contact e1 controlled by a relay which operates to initiate retardation, and a transformer J in the grid circuit of the triode VA. When the voltage of the generator H reaches the value at which the relay P operates, the grid circuit of the triode VB is connected to the potentiometer D, and any subsequent variations in the generator voltage, which may be due to variations in the load of the lift, vary the anode current of the triode VB which in turn influences the grid potential of the triode VA and varies the excitation of the generator in a manner tending to restore the voltage to the desired value. Specification 423,806 also is referred to.
Patent GB-853838-A (GB)
Title: Terminal inserter
IPC: H05K13/04
Filed: 1959-08-18
Abstract: 853,838. Inserting terminal stock in circuit boards; shearing. SYLVANIA ELECTRIC PRODUCTS Inc. Aug. 18, 1959 [Sept. 2, 1958], No. 28233/59. Classes 83 (2) and 83 (4). A method of securing terminals in the form of short lengths of wire or the like in a printed circuit board comprises feeding a supply of terminal stock material, severing a predetermined length of the material and feeding it to an inserter which pushes it through a board supported beneath. A machine for carrying out the method comprises a base 23 supporting a column 11 which carries a terminal stock reel 13 and a platform 27 on which are mounted the stock feeding, shearing and inserting devices. A Z- shaped frame 37 bolted to the platform 27 carries a fluid motor 69 coupled by a rod 71 to a member 73 comprising a body 77 with upper and lower collars 75, 79. Depending from the member 73 is a push-rod 81 carrying an adjustable stop 87 which supports a collet member 85. Terminal stock is fed through a bush 123 in the platform 27 by a reciprocable clutch member 49 having two ball elements 51 for gripping the stock which is held against upward movement by a fixed clutch member 47. On a downward movement of the member 73, the collar 75 engages and pushes down the member 49 to feed a predetermined length of stock through the bush 123 into a box 63. At the same time the collet descends under the action of a spring 89 until the stop 87 abuts a bushing 99. The push-rod 81 continues to descend and moves an elongated finger 83 down through the collet to contact a piece of cut-off terminal stock and push it out of the collet and into a circuit board 20 which at this time is supported on an apertured anvil 109 carried by the ram of a fluid motor 105. After insertion, rotors 69 and 105 are reversed. On upward movement of the member 73, its lower collar 79 moves clutch 49 upwards and also engages a valve 125 to actuate a horizontally disposed fluid motor 57. This moves a cutter 61 which shears off the piece of stock within the box 63 and carries it to the end of the box where it drops into a slot 95 in the collet ready for insertion in a board on the next descent of the member 73.
Patent GB-692989-A (GB)
Title: Improvements in automatic parallelling systems for alternators
Inventor: MILNE JOHN CHARLES
IPC: H02J3/42
Filed: 1950-08-21
Abstract: 692,989. Synchronizing. ELECTRIC CONSTRUCTION CO., Ltd. Aug. 15, 1951 [Aug. 21, 1950], No. 28297/52. Class 38 (iv). A switch 3, 4 for connecting an alternator 1 to another A.C. source 2 is automatically closed when the alternator is suitably phased and near synchronous speed by conduction of a hard valve 20 having a D.C. anode current supply source 5 and previously maintained non- conducting by grid bias voltage derived from a resistance-capacity circuit 21, 15 which is fed, over a rectifier 14, with the difference between nominally equal voltages 12, 13 obtained, respectively, from the two sources. When the machine nears synchronous speed, the time constant of the circuit 15, 21 is inadequate to maintain a steady grid bias and at a predetermined speed, dependent upon the adjustment of tapping 24, the bias becomes insufficient at some point of the beat cycle to hold the valve non-conducting. Specification 692,939 is referred to.
Patent GB-1462718-A (GB)
Title: Digoxin complexes
IPC: C07C19/00
Filed: 1974-06-27
Abstract: 1462718 Digoxin complexes INTERX RESEARCH CORP 27 June 1974 [29 June 1973] 28531/74 Heading C2U The invention comprises complexes of formula where D is digoxin, A is a dihydroxybenzene, and n is 1, 1¢ or 2; and their preparation by contacting D and A in a solvent (e.g. water) preferably in the absence of oxygen and presence of an antioxidant (e.g. sodium bisulphite) until the complex precipitates (with the aid of seeding if necessary). Purification of digoxin is effected by forming and isolating a complex as above, contacting the complex with a suitable solvent (e.g. water or diethyl ether) and isolating precipitated digoxin. Oral cardiotonic compositions comprise a complex as above and a carrier and optionally also a dihydroxybenzene or antinucleating agent.